DE602004013389D1 - Taktsynchronisierung über einem Paketnetzwerk - Google Patents

Taktsynchronisierung über einem Paketnetzwerk

Info

Publication number
DE602004013389D1
DE602004013389D1 DE602004013389T DE602004013389T DE602004013389D1 DE 602004013389 D1 DE602004013389 D1 DE 602004013389D1 DE 602004013389 T DE602004013389 T DE 602004013389T DE 602004013389 T DE602004013389 T DE 602004013389T DE 602004013389 D1 DE602004013389 D1 DE 602004013389D1
Authority
DE
Germany
Prior art keywords
clock synchronization
packet network
synchronization over
over
packet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE602004013389T
Other languages
English (en)
Other versions
DE602004013389T2 (de
Inventor
Martin Raymond Scott
Timothy Michael Frost
Geoffrey Edward Floyd
Martin Crowle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microchip Technology Caldicot Ltd
Original Assignee
Zarlink Semiconductor Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zarlink Semiconductor Ltd filed Critical Zarlink Semiconductor Ltd
Publication of DE602004013389D1 publication Critical patent/DE602004013389D1/de
Application granted granted Critical
Publication of DE602004013389T2 publication Critical patent/DE602004013389T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Telephonic Communication Services (AREA)
DE602004013389T 2003-03-07 2004-03-01 Taktsynchronisierung über einem Paketnetzwerk Expired - Lifetime DE602004013389T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0305245 2003-03-07
GB0305245A GB2399263A (en) 2003-03-07 2003-03-07 Clock synchronisation over a packet network

Publications (2)

Publication Number Publication Date
DE602004013389D1 true DE602004013389D1 (de) 2008-06-12
DE602004013389T2 DE602004013389T2 (de) 2009-06-04

Family

ID=9954315

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004013389T Expired - Lifetime DE602004013389T2 (de) 2003-03-07 2004-03-01 Taktsynchronisierung über einem Paketnetzwerk

Country Status (7)

Country Link
US (2) US20040258099A1 (de)
EP (1) EP1455473B1 (de)
JP (1) JP3960385B2 (de)
KR (2) KR100831498B1 (de)
CN (1) CN100550720C (de)
DE (1) DE602004013389T2 (de)
GB (1) GB2399263A (de)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0004839D0 (sv) * 2000-12-22 2000-12-22 Ericsson Telefon Ab L M Method and communication apparatus in a communication system
US7415044B2 (en) * 2003-08-22 2008-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Remote synchronization in packet-switched networks
KR20040052921A (ko) * 2004-05-17 2004-06-23 김기천 분산 트래픽 제어를 위한 클록 동기화 장치
DE102004028071B3 (de) * 2004-06-09 2005-11-03 Siemens Ag Dezentrale Zeitintervallsynchronisation in verteilten Netzwerken
US7970020B2 (en) * 2004-10-27 2011-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Terminal having plural playback pointers for jitter buffer
GB0426446D0 (en) 2004-12-02 2005-01-05 Koninkl Philips Electronics Nv Measuring the distance between devices
GB2421141A (en) * 2004-12-08 2006-06-14 Zarlink Semiconductor Ltd Adaptive clock recovery scheme
US7468981B2 (en) * 2005-02-15 2008-12-23 Cisco Technology, Inc. Clock-based replay protection
US7646836B1 (en) * 2005-03-01 2010-01-12 Network Equipment Technologies, Inc. Dynamic clock rate matching across an asynchronous network
EP1875683B1 (de) * 2005-04-21 2011-09-07 Koninklijke Philips Electronics N.V. Integrierte schaltung mit datenkommunikationsnetz und verfahren zum entwurf integrierter schaltungen
JP4058067B2 (ja) * 2005-09-28 2008-03-05 株式会社日立コミュニケーションテクノロジー 通信システム
CN101310462B (zh) * 2005-11-14 2013-01-02 艾利森电话股份有限公司 根据接收到的分组流产生时钟信号的装置和方法
WO2007070854A2 (en) * 2005-12-14 2007-06-21 Adtran, Inc. Systems and methods for enabling clock signal synchronization
GB2443867A (en) 2006-03-21 2008-05-21 Zarlink Semiconductor Ltd Timing source with packet size controller providing a distribution of packet sizes
GB2436421B (en) 2006-03-21 2011-09-07 Zarlink Semiconductor Ltd Timing source
US8130777B2 (en) * 2006-05-26 2012-03-06 Agere Systems Inc. Link layer device with clock processing hardware resources shared among multiple ingress and egress links
JP2008017351A (ja) * 2006-07-07 2008-01-24 Toshiba Corp パケットストリーム受信装置
CN1946017A (zh) * 2006-10-09 2007-04-11 华为技术有限公司 在包交换网络中发送端和接收端进行时钟同步的方法和系统
US7843946B2 (en) 2006-11-15 2010-11-30 Lantiq Deutschland Gmbh Method and system for providing via a data network information data for recovering a clock frequency
KR100899659B1 (ko) * 2006-12-01 2009-05-27 한국전자통신연구원 패킷 스케줄러 및 패킷 스케줄링 방법
FI119165B (fi) 2006-12-04 2008-08-15 Tellabs Oy Menetelmä ja järjestelmä kellosignaalien tahdistamiseksi
US8745676B2 (en) * 2006-12-19 2014-06-03 General Instrument Corporation Admitting a data file into a channel
FI121770B (fi) 2007-05-28 2011-03-31 Tellabs Oy Menetelmä ja järjestely tahdistusinformaation siirtämiseksi
CN101682443B (zh) * 2007-06-14 2013-07-10 皇家飞利浦电子股份有限公司 供在网络中使用的网络装置
US8363764B2 (en) * 2007-08-06 2013-01-29 Lantiq Deutschland Gmbh Method and device for reconstructing a data clock from asynchronously transmitted data packets
EP2026485A1 (de) * 2007-08-17 2009-02-18 Nokia Siemens Networks Oy Verfahren und Vorrichtung zur paketbasierten Taktwiederherstellung
DE102007053795A1 (de) 2007-11-12 2009-05-14 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Vermeidung von Schwankungen eines digital erzeugten Ausgabetakts
GB2454936B (en) * 2007-11-23 2012-09-19 Ubiquisys Ltd Oscillator calibration
US8094679B2 (en) * 2007-12-07 2012-01-10 Nsgdatacom, Inc. Apparatus, method and computer program product for providing automated backup to TDM network connections over an IP network
US8687650B2 (en) 2007-12-07 2014-04-01 Nsgdatacom, Inc. System, method, and computer program product for connecting or coupling analog audio tone based communications systems over a packet data network
US20090257345A1 (en) * 2007-12-07 2009-10-15 Nsgdatacom, Inc. Apparatus, method and computer program product for providing self adapting transport of public switched telephone network (pstn) circuits over a wireless network
US8891369B2 (en) * 2007-12-21 2014-11-18 Telefonaktiebolaget L M Ericsson (Publ) Network node and method of operating a network node
JP2008182711A (ja) * 2008-01-24 2008-08-07 Fujitsu Ltd Ａｔｍ装置間通信支援システム、データ送信支援装置、データ送信方法、およびコンピュータプログラム
FI122945B (fi) 2008-05-30 2012-09-14 Tellabs Oy Menetelmä ja laitteisto mittauksia varten
CN101674174B (zh) * 2008-09-12 2013-06-05 华为技术有限公司 一种提高时钟稳定度的方法及设备
US8731036B2 (en) 2008-11-20 2014-05-20 Nec Corporation Packet filter-based clock synchronization system, apparatus, and method, and program thereof
JP5359314B2 (ja) * 2009-01-27 2013-12-04 富士通株式会社 伝送装置
JP5534548B2 (ja) * 2009-03-10 2014-07-02 日本電気株式会社 クロック同期のための受信側ノード、その方法及びそのプログラム
GB0908883D0 (en) * 2009-05-22 2009-07-01 Zarlink Semiconductor Inc Multi input timing recovery over packet networks
WO2010147473A1 (en) * 2009-06-16 2010-12-23 Ontime Networks As Method on a network element for the purpose of synchronization of clocks in a network
US8861669B2 (en) * 2009-09-30 2014-10-14 Synaptics Incorporated Stream clock recovery in high definition multimedia digital system
US9019997B1 (en) 2009-11-30 2015-04-28 Pmc-Sierra Us, Inc. Method and system for transporting constant bit rate clients across a packet interface
US8542708B1 (en) * 2009-11-30 2013-09-24 Pmc-Sierra Us, Inc. Method and system for transporting constant bit rate clients across a packet interface
WO2011074305A1 (ja) * 2009-12-18 2011-06-23 日本電気株式会社 伝送システム、送信装置、受信装置、伝送方法及びコンピュータプログラム
US8462819B2 (en) * 2010-01-06 2013-06-11 Lsi Corporation Adaptive clock recovery with step-delay pre-compensation
US8411705B2 (en) 2010-01-06 2013-04-02 Lsi Corporation Three-stage architecture for adaptive clock recovery
US8401025B2 (en) 2010-04-28 2013-03-19 Lsi Corporation Windowing technique for adaptive clock recovery and other signal-processing applications
US9094564B2 (en) * 2010-05-07 2015-07-28 Microsoft Technology Licensing, Llc Clock synchronization for shared media playback
CN101986595A (zh) * 2010-11-01 2011-03-16 中兴通讯股份有限公司 时间同步方法及节点
JP4914933B2 (ja) * 2010-11-05 2012-04-11 株式会社日立製作所 通信システムおよび従属装置
WO2012116610A1 (zh) * 2011-03-03 2012-09-07 中兴通讯股份有限公司 差分时钟恢复方法及装置
FI123504B (fi) 2011-05-25 2013-06-14 Tellabs Oy Menetelmä ja laite taajuustahdistuksen ohjaamiseksi
CN102545888B (zh) * 2011-12-16 2014-04-09 许继集团有限公司 一种基于tdm的直流输电控制保护系统的同步装置和方法
EP2882120B1 (de) * 2013-12-06 2016-03-09 ADVA Optical Networking SE Verfahren und Vorrichtung zur Abschwächung von Paketverzögerungsvariationen
EP3224789A4 (de) * 2014-09-07 2018-05-02 Codrut Radu Radulescu Synchronisiertes austauschsystem
US10484513B2 (en) 2015-07-17 2019-11-19 Nsgdatacom, Inc. System, method, and computer program product for connecting or coupling audio communications systems over a software defined wide area network
CN107241155A (zh) * 2016-03-28 2017-10-10 中兴通讯股份有限公司 一种自适应时钟恢复方法及装置
US11128742B2 (en) 2019-03-08 2021-09-21 Microsemi Storage Solutions, Inc. Method for adapting a constant bit rate client signal into the path layer of a telecom signal
KR102251460B1 (ko) 2019-11-15 2021-05-12 한밭대학교 산학협력단 합성곱 신경망을 이용한 프레임 동기 방법
US11239933B2 (en) * 2020-01-28 2022-02-01 Microsemi Semiconductor Ulc Systems and methods for transporting constant bit rate client signals over a packet transport network
US11178202B2 (en) 2020-03-16 2021-11-16 Apple Inc. Clock compensation for streaming media systems
US11916662B2 (en) 2021-06-30 2024-02-27 Microchip Technology Inc. System and method for performing rate adaptation of constant bit rate (CBR) client data with a fixed number of idle blocks for transmission over a metro transport network (MTN)
US11838111B2 (en) 2021-06-30 2023-12-05 Microchip Technology Inc. System and method for performing rate adaptation of constant bit rate (CBR) client data with a variable number of idle blocks for transmission over a metro transport network (MTN)
US11736065B2 (en) 2021-10-07 2023-08-22 Microchip Technology Inc. Method and apparatus for conveying clock-related information from a timing device
US11799626B2 (en) 2021-11-23 2023-10-24 Microchip Technology Inc. Method and apparatus for carrying constant bit rate (CBR) client signals

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541031A (en) * 1983-11-21 1985-09-10 Derek W. Moore Loop fault isolator
US4569042A (en) * 1983-12-23 1986-02-04 At&T Bell Laboratories Time measurements in a transmission path
JP2861515B2 (ja) * 1991-07-29 1999-02-24 日本電気株式会社 パケット網における送受信間クロック同期方式及びクロック同期装置
US5450394A (en) * 1994-03-10 1995-09-12 Northern Telecom Limited Delay monitoring of telecommunication networks
WO1995027385A2 (en) * 1994-03-31 1995-10-12 Telco Systems Inc Method and apparatus for controlling transmission systems
GB9410943D0 (en) * 1994-06-01 1994-07-20 Newbridge Networks Corp Clock recovery unit
JP3203978B2 (ja) * 1994-07-25 2001-09-04 ソニー株式会社 データ送受信装置、データ受信装置及びデータ送信装置
DE19527061B4 (de) * 1995-07-25 2004-03-11 Deutsche Telekom Ag Verfahren und Vorrichtung zur Messung der Zellenlaufzeit in ATM-Netzen
US5666358A (en) * 1995-10-16 1997-09-09 General Instrument Corporation Of Delaware Method and apparatus for supporting TDMA operating over hybrid fiber coaxial (HFC) or other channels
JP3516829B2 (ja) * 1997-03-24 2004-04-05 三菱電機株式会社 通信装置
DE69735527D1 (de) * 1997-05-02 2006-05-11 Lsi Logic Corp Digitales Verfahren zur adaptiven Taktrückgewinnung
US5995570A (en) * 1997-06-27 1999-11-30 International Business Machines Corporation Recovering a clock signal in a multimedia network using time stamps
US6111878A (en) * 1997-11-04 2000-08-29 Alcatel Low jitter timing recovery technique and device for asynchronous transfer mode (ATM) constant bit rate (CBR) payloads
WO1999048234A1 (en) * 1998-03-16 1999-09-23 Telefonaktiebolaget Lm Ericsson Synchronous method for the clock recovery for cbr services over the atm network
US6279058B1 (en) * 1998-07-02 2001-08-21 Advanced Micro Devices, Inc. Master isochronous clock structure having a clock controller coupling to a CPU and two data buses
US6327274B1 (en) * 1998-09-15 2001-12-04 Nokia Telecommunications, Inc. Method for estimating relative skew between clocks in packet networks
FR2786964B1 (fr) * 1998-12-03 2001-01-05 Cit Alcatel Procede et systeme pour asservir une frequence via un reseau de transmission asynchrone et reseau radiotelephonique incluant ce systeme
US6661810B1 (en) * 1999-03-19 2003-12-09 Verizon Laboratories Inc. Clock skew estimation and removal
JP2000332802A (ja) * 1999-05-24 2000-11-30 Sony Corp 通信方法、通信システム、通信端末および中継装置
US6785230B1 (en) 1999-05-25 2004-08-31 Matsushita Electric Industrial Co., Ltd. Audio transmission apparatus
JP4218186B2 (ja) * 1999-05-25 2009-02-04 パナソニック株式会社 音声伝送装置
FI115494B (fi) * 1999-09-08 2005-05-13 Nokia Corp Tukiaseman taajuussynkronointi
US6721328B1 (en) * 1999-11-19 2004-04-13 Adc Telecommunications, Inc. Adaptive clock recovery for circuit emulation service
US6687223B1 (en) * 2000-01-11 2004-02-03 Lucent Technologies Inc. Delay-locked admission control scheme in communications networks
US6898213B1 (en) * 2000-10-16 2005-05-24 Iprad Ltd. Circuit emulation service (CES) over IP
US7023884B2 (en) * 2000-12-19 2006-04-04 Lucent Technologies Inc. Clock offset estimation with bias correction
US6470032B2 (en) * 2001-03-20 2002-10-22 Alloptic, Inc. System and method for synchronizing telecom-related clocks in ethernet-based passive optical access network
US7706403B2 (en) * 2003-11-25 2010-04-27 Telefonaktiebolaget Lm Ericsson (Publ) Queuing delay based rate control

Also Published As

Publication number Publication date
JP2004274766A (ja) 2004-09-30
GB2399263A (en) 2004-09-08
DE602004013389T2 (de) 2009-06-04
KR20040081033A (ko) 2004-09-20
EP1455473A3 (de) 2005-12-07
GB0305245D0 (en) 2003-04-09
US20080212619A1 (en) 2008-09-04
KR20070055451A (ko) 2007-05-30
JP3960385B2 (ja) 2007-08-15
EP1455473A2 (de) 2004-09-08
CN1551556A (zh) 2004-12-01
US7817673B2 (en) 2010-10-19
KR100831498B1 (ko) 2008-05-22
US20040258099A1 (en) 2004-12-23
CN100550720C (zh) 2009-10-14
EP1455473B1 (de) 2008-04-30

Similar Documents

Publication Publication Date Title
DE602004013389D1 (de) Taktsynchronisierung über einem Paketnetzwerk
AT500118A2 (de) Mehrfach-funkgerät-vereinheitlichungsprotokoll
DE60328925D1 (de) Jittergenerator
FI20045508A (fi) Tietokannan synkronointi matkaviestinverkon kautta
DE60310433D1 (de) Verbesserte aufwärtspaketübermittlung
FI20030429A0 (fi) Ryhmäliikennöinti matkaviestinverkossa
DK1656780T3 (da) Opsætning af kommunikationssessioner
DE602005019829D1 (de) Paketwiederübertragung in einem drahtlosen lokalen netzwerk
GB0326969D0 (en) Networks
DE60319029D1 (de) Massenspektrometer
GB0316876D0 (en) Network node
EP1730893A4 (de) Verfahren zum senden eines pakets durch einen knoten
DE60336897D1 (de) Massenspektrometer
FI20020673A0 (fi) Ajantasaisen pakettidatan pakettien ajoittaminen
DE602004027322D1 (de) Übertragungssynchronisierung
DE10324839A8 (de) Massenspektrometer
FR2848756B1 (fr) Reseau ethernet
GB0509315D0 (en) A local network node
DE50301814D1 (de) Nebelwurfkörper
DK1652363T3 (da) Kommunikationsnetværk
FI20040611A (fi) Moniprotokollatietokanta
GB2408401B (en) A network
GB2407741B (en) Characterizing jitter
DE602004012512D1 (de) Komparator
SE0303421L (sv) En list

Legal Events

Date Code Title Description
8364 No opposition during term of opposition